Extensions
Variants seen in the corpus:
Extensionsextensions
Providers using this tag (13)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 2 Solid coverage with minor gaps
Developing 3 Usable, with meaningful gaps to close
Thin 6 Limited public surface area
Emerging 2 Early or largely undocumented
APIs with this tag (116)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Exemplar 24 Complete, well-documented, and agent-ready
Shopify Admin Extensions APIAdmin UI extensions allow developers to extend the Shopify admin with custom UI components. Extensions can ...Shopify Checkout UI Extensions APICheckout UI extensions let app developers build custom functionality that merchants can install at defined ...Shopify POS UI Extensions APIPOS UI extensions enable app developers to build custom functionality for Shopify Point of Sale. Extensions...HubSpot Calling Extensions APIThe calling extensions SDK enables apps to provide a custom calling option to HubSpot users directly from C...HubSpot CRM Calling Extensions APIHubSpot CRM Calling Extensions — 13 operation(s) from HubSpot's published OpenAPI.HubSpot Timeline Events APIThe timeline events API enables technology partners to send custom event data from external systems into Hu...HubSpot Video Conferencing APIThe video conferencing API enables you to integrate custom video conferencing solutions into HubSpot's meet...Dynatrace Extensions API 2.0The Dynatrace Extensions API 2.0 provides endpoints for managing monitoring extensions including uploading,...Dynatrace Hub APIThe Dynatrace Hub API provides programmatic access to the Dynatrace Hub catalog content including apps, ext...Ada Integrations (Actions) APIConfigure and invoke Actions, the integration layer that lets the Ada AI Agent call external systems and AP...Optimizely Extensions APIManage reusable extensions that encapsulate experiment logic and visual changes.Elastic Stack (ELK Stack) Extensions APIThe Extensions API from Elastic Stack (ELK Stack) — 2 operation(s) for extensions.Adobe Suite Extensions APIAn extension represents the installed instance of an extension package. An extension makes the features def...Microsoft Azure Extensions APIThe Extensions API from Microsoft Azure — 8 operation(s) for extensions.Outreach Client Extensions APIClient extensibility surface for embedding a web application inside the Outreach client — shell, tab and ti...Adobe Launch Extensions APIManage extensions installed in event forwarding properties.MATLAB MEX APIBuild MEX functions that enable calling C, C++, and Fortran code from MATLAB, with support for both the C++...Confluence Dynamic Modules APIRegister and manage dynamic modules for Confluence Connect apps.Confluence V2 App Properties APIStore and retrieve app-specific properties in Confluence using the v2 API.Confluence V2 Custom Content APICreate and manage custom content types in Confluence using the v2 API.Azure DevOps Extension Management APIAPI for managing extensions installed in an Azure DevOps organization. Enables programmatic listing, instal...Tealium iQ Profiles APIProvides programmatic access to iQ Tag Management configuration, allowing retrieval and modification of tag...Canva Apps SDKBuild apps that extend Canva's editor with custom functionality, content, and integrations.Swell Apps PlatformSwell Apps extend the platform with custom data models (added fields or new entities), events (triggering f...
Strong 20 Solid coverage with minor gaps
GitHub Copilot Extensions APIPlatform for building Copilot Extensions that integrate third-party tools, services, and custom agents into...Docusign Connected Fields APIThe Docusign Connected Fields API enables developers to validate envelope field data programmatically. It a...Outlook Add-ins APIJavaScript API for building Outlook add-ins that extend Outlook functionality with custom features, using t...Bentley Systems Extensions APIExtensions resources for the iTwin Scenes API.Medusa Framework (Modules, Workflows, Routes)Server-side framework primitives for extending Medusa - custom API Routes, Modules with their own data mode...Eclipse Marketplace APIREST API for accessing Eclipse Marketplace data including listings, categories, favorites, and installation...Open VSX Registry APIREST API for the Eclipse Open VSX Registry, an open-source alternative to the Visual Studio Marketplace for...AWS Lambda Extensions APIThe Lambda Extensions API enables you to create extensions that integrate with the Lambda execution environ...Foxglove Technologies Extensions APIThe Extensions API from Foxglove Technologies — 3 operation(s) for extensions.Webflow Designer Extension APIThe Webflow Designer Extension API allows developers to build extensions that run inside the Webflow Design...Safari Extensions APIAPI for building Safari Web Extensions that extend and customize the browsing experience.Jane Extensions APICreate, read, update, delete, and list Jane Extensions, and browse the catalog of approved extensions avail...Jane Extensions APIThe Extensions API from Jane — 2 operation(s) for extensions.RingCentral Extensions APIThe Extensions API from RingCentral — 5 operation(s) for extensions.RingCentral Provisioning APIThe RingCentral Provisioning API supports account, extension, user, phone-number, device, and role lifecycl...Microsoft Dynamics NAV Extensions APIManage installed extensionsOffice Add-ins PlatformPlatform for building solutions that extend Office applications including Excel, Outlook, Word, PowerPoint,...Browserbase Extensions APIThe Extensions API from Browserbase — 2 operation(s) for extensions.Azure Virtual Machine Extensions REST APIREST API for managing Virtual Machine Extensions, which provide post-deployment configuration and automatio...Hyperbrowser Extensions APIUpload and list custom Chrome extensions that can be attached to browser sessions for advanced automation, ...
Developing 31 Usable, with meaningful gaps to close
Adobe UXP (Unified Extensibility Platform)The Unified Extensibility Platform (UXP) is Adobe's modern cross-app plugin development framework replacing...Office Add-ins APIJavaScript API for building add-ins for Word, Excel, PowerPoint, and Outlook.Twitch Extensions APIManage and query extension informationAnchor Browser Extensions APIThe Extensions API from Anchor Browser — 2 operation(s) for extensions.SAP Lumira Discovery Extensions APIJavaScript API for creating custom visualizations and extensions in SAP Lumira.Docupilot extensions APIThe extensions API from Docupilot — 10 operation(s) for extensions.Kernel Extensions APICreate, list, retrieve, and delete browser extensions.SharePoint Framework (SPFx)The SharePoint Framework (SPFx) is a development model for building client-side web parts, extensions, and ...Knostic extensions APIVS Code / IDE marketplace extensions with risk assessmentDataiku Plugin APIAPI for developing custom plugins that extend Dataiku DSS with custom datasets, recipes, processors, and we...Chrome Extensions APIAPIs for building Chrome browser extensions.Zoho Cliq Extensions APIExtensions ModuleLambdaTest extensions APIThe extensions API from LambdaTest — 2 operation(s) for extensions.Make Custom AppsThe Make Custom Apps platform enables developers to create their own applications for the Make automation p...Porter Mixins APIExtension interface for building and using mixins, which are the building blocks for authoring Porter bundl...Porter Plugins APIPlugin interface that allows extending Porter's core functionality, such as storing installation data, cred...Adobe Illustrator CEP Extensions APIThe Adobe Illustrator Common Extensibility Platform (CEP) allows developers to build panels and extensions ...Adobe Illustrator Plugin SDKThe Adobe Illustrator Plugin SDK enables developers to build native C++ plug-ins for Illustrator on Windows...Envoy API V3The Envoy API v3 is the current stable protobuf-based configuration and extension API for Envoy proxy. It d...Looker Extension Framework APIThe Looker Extension Framework provides APIs and SDKs for building custom extensions that run inside the Lo...OpenShift Console APIAPI for managing OpenShift web console extensions including ConsoleCLIDownload, ConsoleExternalLogLink, Con...Helm PluginsThe Helm Plugins API defines the interface for extending the Helm CLI with additional subcommands. Plugins ...TYPO3 REST API Extension (t3api)The sourcebroker/t3api extension provides an easy-to-configure REST API layer for TYPO3 Extbase models. API...Commercetools Merchant Center Customizations APIThe commercetools Merchant Center Customizations API provides the programmatic interface for building custo...Kernel Extensions APICreate, list, retrieve, and delete browser extensions.JupyterLab Extension APIJavaScript and TypeScript API used to build JupyterLab extensions and plugins. JupyterLab is composed of pl...Tableau Extensions APIBuild dashboard extensions that enable users to interact with data from other applications directly in Tabl...Excel JavaScript APIJavaScript API for building Excel add-ins and extensions.Automation Anywhere Package SDKThe Automation Anywhere Package SDK is a Java-based development toolkit that enables developers to build cu...Flow Extension APIEnriches processes and documents including purchase orders, invoices, ASNs, order confirmations, and receip...SAP Ariba Custom Forms APIEnables creation and management of custom forms for extending procurement and sourcing processes with addit...
Thin 34 Limited public surface area
Celery Signals APISignals API for hooking into Celery lifecycle events including task, worker, beat, and consumer signals to ...QlikView JavaScript APIJavaScript API library for building websites containing QlikView content and for developing custom extensio...QlikView Plugin APICOM-based API for creating custom objects and extensions in QlikView.VS Code Marketplace Extensions APIQuery, search, and retrieve VS Code extensions from the MarketplaceSAP Ariba Flow Extension APIExtends workflow processing capabilities for custom procurement and sourcing processes.Enterprise Architect Add-In FrameworkFramework for building custom add-ins that extend Enterprise Architect with new functionality. Add-ins can ...Wazo Extensions APIThe extensions API from Wazo — 12 operation(s) for extensions.Jaeger Remote Storage APIThe Jaeger Remote Storage API is a gRPC-based interface that allows extending Jaeger with custom storage ba...Qlik Extensions APIManages visualization extensions in Qlik Sense, allowing third-party visualizations and other presentation ...PagerDuty Extensions APIExtensions are representations of Extension Schema objects that are attached to Services.Trello Power-UpsTrello Power-Ups are a framework for extending and integrating with the Trello platform. Power-Ups allow de...Lucid Extension APIBuild extensions that run inside Lucidchart, Lucidspark, and Lucidscale editors. Read and modify canvas con...Manifold Creator Core Smart ContractsOpen-source Solidity smart contract framework for deploying ERC721 and ERC1155 creator-owned NFT contracts....Unity Platform APIThe Unity Cloud (Unity Platform) developer surface, documented publicly at docs.unitycloud.io as the Unity ...Kittl SDK & App PlatformThe Kittl SDK is the bridge between a sandboxed app and the Kittl editor host. It exposes async namespaces ...Obsidian Plugin APIIn-app TypeScript/JavaScript Plugin API for building Obsidian plugins. Plugins access the Vault, Workspace,...Fly.io Extensions APIThe Fly.io Extensions API is a provider-facing HTTP interface that enables third-party services to integrat...Penpot Plugin APIPenpot's Plugin API allows developers to build and publish custom extensions that extend the Penpot design ...Windstream Holdings extensions APIExtension managementCraft eXtension APIThe Craft eXtension API is an official TypeScript/JavaScript SDK (@craftdocs/craft-extension-api) for build...SPX Graphics Extensions APIInvoke functions in custom SPX extensionsWasmEdge Plugin SystemWasmEdge's plugin system enables extending the runtime with custom host function packages. Plugins can be d...Freshdesk App SDKThe Freshdesk App SDK allows developers to build custom applications that extend the functionality of the F...Freshworks App SDKThe Freshworks App SDK enables developers to build custom applications and extensions that run within the F...Blender Extensions PlatformThe Blender Extensions Platform (extensions.blender.org) provides a curated repository of addons, themes, a...Nostr Implementation Possibilities (NIPs)NIPs are the standards documents that extend Nostr beyond the core protocol. They define event kinds (text ...JupyterLabNext-generation web-based interactive development environment for notebooks, code, and data, with a Jupyter...Raycast Extension API (SDK)The primary developer interface - the @raycast/api npm package. A strongly typed TypeScript/Node SDK (insta...Raycast StoreThe Raycast Store distributes community and partner extensions. Publishing is done via the `ray` CLI and a ...Better Auth PluginsFirst-party plugin ecosystem covering two-factor authentication, passkeys, magic link, organizations and te...Visual Studio Extensibility APIThe Visual Studio Extensibility API enables developers to create extensions that customize and extend Visua...Visual Studio Live Share APIExtension-facing API (via the vsls npm module) that allows other VS Code and Visual Studio extensions to st...Visual Studio Marketplace APIThe Visual Studio Marketplace API provides access to the extension marketplace for Visual Studio, VS Code, ...VS Code Extension APIThe VS Code Extension API enables developers to build extensions for Visual Studio Code. It provides APIs f...
Emerging 7 Early or largely undocumented
OpenInfra Foundation Extensions APIThe Extensions API from OpenInfra Foundation — 1 operation(s) for extensions.Thymeleaf Extras and DialectsAdditional Thymeleaf dialect extensions including the Java 8 Time dialect for date/time formatting, the Spr...Higress Wasm Plugin APIThe Higress Wasm Plugin API provides a WebAssembly-based extension interface for developing and deploying c...QRadar GUI App Framework APIAPI for developing and managing QRadar apps and extensions.Varnish Modules (VMODs)VMODs are extensions written for Varnish Cache that extend VCL capabilities. Bundled modules include blob (...Arc Chromium ExtensionsArc inherits the Chromium / Chrome Web Store extension model, so any Manifest V3 extension can be installed...Amazon Web Services Extensions APIThe Extensions API from Amazon Web Services — 2 operation(s) for extensions.
Companies reaching this through an API (88)
These companies publish an API, specification or operation carrying “Extensions” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
Ada
Adobe Creative Cloud
Adobe Illustrator
Adobe Launch
Adobe Suite
Amazon Web Services
Anchor Browser
Apple Safari
Arc (The Browser Company)
Ariba
Automation Anywhere
AWS Lambda
Azure DevOps
Azure Virtual Machines
Bentley Systems
Better Auth
Blender
Browserbase
Canva
Celery
commercetools
Confluence
Dataiku
Docupilot
Docusign
Dynatrace
Elastic Stack (ELK Stack)
Envoy
Fly Io
Foxglove Technologies
Freshdesk
Freshworks
Google Chrome
Helm
Higress
HubSpot
Hyperbrowser
IBM QRadar Security Intelligence Platform
Jaeger
Jane
Jupyter
Kernel
Kernel
Knostic
LambdaTest
Looker
Lucidchart
Make
Manifold
MATLAB
Show all 88 companies ↓
Medusa
Microsoft Azure
Microsoft Dynamics NAV
Microsoft Excel (Advanced)
Microsoft Office
Microsoft Office 365
Microsoft Outlook
Microsoft SharePoint
Nostr
Obsidian
OpenInfra Foundation
OpenShift
Optimizely
Outreach
PagerDuty
Penpot
Porter
Qlik
QlikView
RingCentral
SAP Ariba
SAP BI Tools
Shopify
Sparx Enterprise Architect
SPX Graphics
Swell
Tableau Desktop
Tealium
Thymeleaf
Trello
Twitch
TYPO3
Varnish Cache
WasmEdge
Wazo
Webflow
Windstream Holdings
Zoho Cliq
Score breakdown
Frequency
61.7
log-scaled weighted occurrences
Breadth
0.4
spread across providers
Quality lift
43.2
mean composite of providers using it
Cohesion
13.0
strength of nearest seed neighbor
Related tags
Plugins 24 co-occurrences
Profiles 14 co-occurrences
Functions 10 co-occurrences
Configuration 21 co-occurrences
JavaScript 19 co-occurrences
Customization 7 co-occurrences
Add-Ins 6 co-occurrences
Folders 11 co-occurrences
Where this tag comes from
Api tag116
Provider tag13
Openapi tag28
Openapi op tag171
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.